Wrench



FIG. 1 is a front view of an embodiment of our design for a wrench;

FIG. 2 is a top, front and side perspective view thereof;

FIG. 3 is a top, front and opposite side perspective view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top, rear and side perspective view thereof; and,

FIG. 6 is a top, rear and opposite side perspective view thereof.

The area shown in broken lines show environmental structure only and form no part of the claimed design. 

CLAIM The ornamental design for a wrench, as shown and described. 